Loving-kindness Meditation for Posttraumatic Stress Disorder and Complex Posttraumatic Stress Disorder

An Examination of the Psychological Effects of Loving-Kindness Meditation on PTSD : A Single Arm Pilot Study - A single arm pilot study of LKM for PTSD and CPTSD

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000054144

Enrollment

Registered

2024-04-15

Start date

2024-04-15

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Posttraumatic Stress Disorder and Complex Posttraumatic Stress Disorder

Interventions

A 12-week loving-kindness meditation program(weekly one and half hour group session, everyday homework)

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) Adult between 18 and 75 years 2) Primary diagnosis of PTSD or CPTD (ICD-11 criteria; confirmed by ADIS-5 and ITI) 3) Native Japanese speaker 4) Computer with internet access

Exclusion criteria

Exclusion criteria: (a) Experienced intervention with meditation practices (b) Severe substance use disorders, lifetime history of bipolar I, schizophrenia, schizoaffective or cognitive disorders (assessed by clinical interview) (c)Actively considering plans of suicide or homicide (assessed by clinical interview) (d)Severe physical disorders or cognitive disorders (dementia, severe traumatic Brain Injury) (e) No permission from their physician or psychologist for any psychological problems (f) Other relevant reason decided by the investigators

Design outcomes

Primary

Measure	Time frame
The total score of the ITQ [ Time Frame: pre, post, and 3 month follow-up ]	—

Secondary

Measure	Time frame
1) The severity ratings of PTSD intrusion symptoms by the Clinical Global Impressions Scale - Severity. [ Time Frame: pre, post, and 3 month follow-up ] 2) Improvements of PTSD symptoms measured by the Clinical Global Impressions -Improvement. [ Time Frame: pre, post, and 3 month follow-up ] 3) The total score of the PCL-5. [ Time Frame: pre, post, and 3 month follow-up ] 4) Psychological indices: Self-compassion Scale, Self-esteem scale, Watts Connectedness Scale, Nondual Awareness Dimensional Assessment, Five Facet Mindfulness Questionnaire, Satisfaction With Life Scale, Dispositional Positive Emotion Scale, and DASS 21. [ Time Frame: pre, post, and 3 month follow-up ]	—

Measure

Time frame

1) The severity ratings of PTSD intrusion symptoms by the Clinical Global Impressions Scale - Severity. [ Time Frame: pre, post, and 3 month follow-up ] 2) Improvements of PTSD symptoms measured by the Clinical Global Impressions -Improvement. [ Time Frame: pre, post, and 3 month follow-up ] 3) The total score of the PCL-5. [ Time Frame: pre, post, and 3 month follow-up ] 4) Psychological indices: Self-compassion Scale, Self-esteem scale, Watts Connectedness Scale, Nondual Awareness Dimensional Assessment, Five Facet Mindfulness Questionnaire, Satisfaction With Life Scale, Dispositional Positive Emotion Scale, and DASS 21. [ Time Frame: pre, post, and 3 month follow-up ]

—

Countries

Japan

Contacts

Public ContactKohki Arimitsu

Kwansei Gakuin University Department of Psychological Science

caslstudies@gmail.com080-1361-9039

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026